Calf exerciser



FIG. 1 is a right side elevational view of a calf exerciser showing mynew design;

FIG. 2 is a left side elevational view thereof, showing the sideopposite that of FIG. 1;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top plan view thereof.

The ornamental design for a calf exerciser, as shown.